* interest_rate *-i* The rate in percent of the initial mortgage deal
* interest_rate_term *-it* The term for the initial interest rate
* term *-t* The total term of the mortgage (defaults to 25 years)
-* interest_rate_increase *-ii* A yearly increace for the interest rate outside of the initial fixed term
+* interest_rate_increase *-ii* A yearly increase for the interest rate outside of the initial fixed term
* cap_rate_increase *-ic* Cap the yearly interest increase at a particular value
* monthly_overpayment *-o* The value of any regular monthly overpayments you intend to make
* monthly_payment *-p* An amount you decide you want to pay off each month (calculated from mortgage value, rate and term otherwise)